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POGet Value selected combobox dynamic data in javascript
 

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  1. POGet Value selected combobox dynamic data in javascript
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    <p>i have a combobox that list a dynamic data from database, i use javascript, and it's works. but the problem is how to get the selected value ? i want to get value of "pilih rayon". this is the picture and code.</p> <p><img src="https://i.stack.imgur.com/8QI0C.jpg" alt="this is the picture"></p> <pre><code>&lt;script type="text/javascript"&gt; function showcabang(){ &lt;?php require ('config.php'); $query = "SELECT distinct org_id FROM gis"; $cabang = pg_query($query); while ($data = pg_fetch_array($cabang)) { $idcabang = $data['org_id']; // membuat IF untuk masing-masing propinsi echo "if (document.list.cabang.value == \"".$idcabang."\")"; echo "{"; // membuat option kabupaten untuk masing-masing propinsi $query2 = "SELECT distinct cp_rayon_name FROM gis WHERE org_id = $idcabang ORDER BY cp_rayon_name"; $hasil = pg_query($query2); $content = "document.getElementById('rayon').innerHTML = \"&lt;select name='rayon'&gt;"; while ($data2 = pg_fetch_array($hasil)) { $content .= "&lt;option value='".$data2['cp_rayon_code']."'&gt;".$data2['cp_rayon_name']."&lt;/option&gt;"; } $content .= "&lt;/select&gt;\";"; echo $content; echo "}\n"; } ?&gt; } &lt;/script&gt; </code></pre> <hr> <pre><code>&lt;html&gt; &lt;form name="list" method="post" action="json.php"&gt; &lt;table&gt; &lt;tr&gt;&lt;td&gt;Pilih ID Cabang&lt;/td&gt;&lt;td&gt;:&lt;/td&gt; &lt;td&gt; &lt;select name="cabang" onchange="showcabang()"&gt; &lt;option&gt;Silakan Pilih&lt;/option&gt; &lt;option&gt;------------------------&lt;/option&gt; &lt;?php // query untuk menampilkan propinsi $query = "SELECT distinct org_id FROM gis ORDER BY org_id"; $hasil = pg_query($query); while ($data = pg_fetch_array($hasil)) { echo "&lt;option value='".$data['org_id']."'&gt;".$data['org_id']." &lt;/option&gt;"; } ?&gt; &lt;/select&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td&gt;Pilih rayon&lt;/td&gt;&lt;td&gt;:&lt;/td&gt; &lt;td&gt; &lt;select name="namarayon" id="rayon"&gt;&lt;/select&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt;&lt;td&gt;&lt;input type="submit" name="submit" value="Submit" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; &lt;/html&gt; </code></pre>
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    1. COselected value on the client side or the server side?
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    2. COThe way you have try to solve this problem is very messy, i suggest to read about `JSON` `jquery` so you can have some cleaner code.
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    3. COon server side, example : i want to get the value and show that in other page.
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      1. USKrichevskoy
 

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